Block-surfacing machine.



G. ROSINO, E. M. BBVARD & J. HBRRIG.

ABLOCK sum-"AGING MACHINE. APPLICATION FILED JAILZO, 19112.

1 ,047,707. I Patentedl Deo. 17, 1912.A

COLUMBIA PLANOGRAPH C0.. wAsmNGTUN. n, c,

G. ROSINO, E. M. BEVARD & J. HERRIG.

BLOCK SURFAGING MACHINE. Y

APPLIGATION FILED 11111.20, 1912.

Patented Dec. 17, 1912.

3 SHEETS-SHEET 2.

COLUMBIA PLANDGRAPH CO., wAsHlNuToN. D. C.

G. ROSINO, E. M. BEVARD & J. HERRIG.

BLOCK SURPAGING MACHINE. APPLIGATIO'N FILED 1111.20, 1912.

Patented Dec. 17, 1912.

. I 3 SHEETS-SHEET 3.

g mi -TEDsTArEs 4PATENT oEEIcE.-

GEORGE EcsIivo7 EDWARD ivr. EEvARD, AND .Toi-nv Hannie, oErosroEIA, omo.7

y BLOCK-SURFACING MACHINE.

To all 'whom t may concern Be it known that we, GEORGE RosiNo, ED- WARDM. BEVARD, and JOI-1N HERRIG, citizens ofthe United States, residingatfFostoria, in the county of Seneca and State of Ohio, have inventedcertain new and useful Improvements in Block-Surfacing Machines, ofwhich the following is a specification.

' Our invention relates to surfacing niachines, and particularly to amachine for resurfacing, leveling and soluaringL meat blocks, suoli asare used Vby butchers, ,or blocks used under like circumstances. Theseblocks after meat has been chopped upon them become extremely rough andthe surface is broken andk splintered. When the broken and splinteredsurface has to be removed by means of ahand tool, it is extremelydiiiicult to give tothe block a relatively ysmooth surface which islevel and square. Furthermore, the work of resurfacing a block of thischaracter is very tedious and'kit takes so much vtime as to beexpensive.

The primary object of our invention is to provide a machine which willeffectively and economically remove the broken, cut and `splinteredsurface of La block and resurface the same so as toprovide ya true,level and relatively smooth face to the block. ,y

A further object in this connection is to provide a machine having meanswhereby it may be clamped upon a butchers block and carrying surfacecutting tools, with` means whereby these tools may be reciprocated andsimultaneously fed across the surface of the block from one end of theblock to the other.

A furtherobject is to provide a construction of the character abovedescribed in which thetool'carriers are rigidly guided across the faceof the block so as tocut a perfectly true surface and to provide meanswhereby the tools may be readily removed and vreplaced whenever desired.

Other objectswill appear in the course of the following description.

Our inventionis illustrated in the accom-` panying drawings wherein; p

Figure 1-is a plan view of a block surfacer constructed in accordancewith 4our invention. Fig. 2is aside elevation ofthe construction shownin Fig. 1. Fig. 3 is a fragmentary detail of a pair of tool ycarrierbars and the tool holders attached thereto. Fig. 4 is an end elevationofv the construction shownin Fig. 1. Fig. 5 is al detail View ofSpecification of Letters Patent.

Patented Application filed January 20, 1912. Serial No. 672,398.k

the feed ratchet, the feed shaft being in section. Fig. 6 is aperspective detail view of one of the toolholders and a tool therefor,the parts being-Separated.

to in t-he following description'and indicated 6o Corresponding and likeparts arereferred in all the viewsof the accompanying drawj ings by thesame reference` characters. n

Referring now; particularly t0 lrigs. 1 and 2, it willlbe seen thattheframe of our machine consists of theparallehflongitudinally extendingframe vbars 2 and Qt and the transversely extending frame bars '3, theseframe bars being. connected to each other in any suitable or desiredmanner.

Slidingly` mounted upon one of thel frame n bars 2 is a traveler 4having thev formwof a block, this traveler being connected at its -lowerend with certain feeddevices as will be -laterdescribed yPassing throughthe `traveler 4 andmounted-in bearings in'` the end framesf is a drivingshaft 6 carrying at one end the driving pulley 7 or other inean's bywhich power may be transmitted to the shaft, and providedalong nearlyits entire extent with a Vfeather or spline 8. i Mounted upon the'shaftL6 and rotatable* therewith is a pinion `9. This pinion is splined 'uponthe shaft by means of the feather 8 and as a consequence islongitudinally movable relative to the shaft I.while rotating therewith.The block 4 is formed with a cleftor vertically extending recessy 10which extends down below the shaftG, and the pinion 9 isk disposed inthe lower end of this recess. Passing through the upper end of the blockand rotatably mounted therein is f *l* a crank shaft .11 andrk mountedupon this crank shaft is a gear wheel 12 which'meshes with the pinion 9so that .ther rotation of the shaft 6 may be communicated from thepinion 9 to the `gear-12 and thence to the ,crank A 4 shaft 11. It willof coursebe understoody that the block 4 forming the traveler is kSlot-Vted or cut out to receive the longitudinal frame bar 2 and travelthereupon. Y

Mounted upon the Oprosteframebar :2a

is a vertically disposed block or traveler 42"y which slides upon.therframe' bar *2a and which is connected rigidly to the'block4 bymeans of the transversely extending bolts '13,"

Vthese bolts forming spacing ymembers between the blocks and holdingtheblocks in` rigid relation to each. other.'

k The inside faces of the lower ends of the travelers 4rand 4aarecutaway as at114 to i receive the frame bars 2 and 2a. These framebars as shown in Fig. 4 are angular in section, and mounted in therecessed portions 14 of each of the travelers are the upper and lowerpairs of wheels 15 which bear upon the 'Y frame bars 2 and 2a andprovide means whereby the travelers may move easily along these framebars. It will be understood, however, that we do not wish to limitourselves to this particular way of mounting the travelers upon theframe bars 2 and 2a as other means might be provided which would securea smooth movement of the travelers over the frame bars.

Slidingly mounted in the travelers 4 and 4El for reciprocationtransversely to the length of the machine are one or a pair of toolcarriers designated 16 and 17. These carriers are both alike and hence adescription of one will serve for a description of the other. Eachcarrier comprises a pair of spaced bars 18 spaced from each other attheir ends and connected by bolts. rFliese bars are of such crosssectional area as to be entirely rigid.

Mounted upon the crank shaft 11 are the oppositely disposed cranks 19and 20, each having wrist pins 21, the wrist pin of the crank 2O beingconnected by means of a connecting rod 22 to the tool carrier 17, whilethe wrist pin of the crank 19 is connected by means of the connectingrod 23 to the carrier 16. While we have shown two carriers 16 and 17 andtwo cranks 19 and 20, it. is to be understood that only one tool carriermight be used and that, therefore, the shaft 11 need be provided withonly one crank. V

Preferably, however, two tool carriers are used.

The shaft 11 is provided with two cranks, and these cranks are setoppo-sitely from each other so that the tool carriers 16 and 17 willreciprocate in opposite directions. Each of the connecting rods 22 and23 is connected to its respective tool carrier by a transverse bolt 24which extends through the slot defined by the upper and lower bars 18 ofthe tool carrier, this bolt being provided with a washer larger thansaid slot or space and with a nut whereby the tool carrier may beclamped rigidly into engagement with the connecting rod. Inasmuch as theslot between the bars 18 eX- tends almost the entire length of the toolcarrier, it will be obvious that the tool carrier may be longitudinallyadjusted relative to the bolt 24. This applies equally well of course tothe opposite tool carrier which is of precisely the same construction.Mounted upon the tool carriers are the tool holders shown in Fig. 6.These, however, will be described later.

It is necessary of course that the travelers 4 and 4a should be given alongitudinal movement over the face of the block, and for feed screws.

this purpose we provide the oppositely disposed feed screws 25 and 26.The feed screw 25 coacts with the traveler 4 while the feed screw 26coacts with the traveler 4a. Both the travelers 4 and 4a are eachprovided with a nut 27 attached to the lower end of the traveler andinteriorly screw threaded which surrounds and engages with therespective The feed screws 25 and 26 are journaled at their extremitiesin the frame bars 3 as shownin Figs. 1 and 2 and are driven from atransverse feed shaft designated 28 and mounted in bearings on one endof the machine. This feed shaft at its ends is provided with beveledgears 29 meshing' with beveled gears 30 of the screw shafts 25 and 26.

In order to give an intermittent rotation to the feed screws 25 and 26,we provide upon the shaft 6 a pinion 31 which meshes with a gear wheel32 mounted upon a shaft 33 and disposed at one end of the machine. Thisshaft 33 carries upon it a cam 34 having a volute face which extends fora portion of its distance concentrically to the shaft 33 and thenextends outward eccentrically to the shaft to a predetermined point, thesurface of the cam then extending radially inward toward the center.Coperating with the cam is a bell crank lever 35 having a roller mountedon its free end which travels upon the face of the cam 34. A spring 36acts to force the free end of the bell crank lever against the face ofthe cam 34. The other extremity of the bell crank lever opposite theroller is connected to a pawl 37 carrying teeth 38 as shown in Fig. 5,this pawl coacting with a ratchet wheel 39 mounted upon the shaft 28.

1t will be seen that as the cam 34 rotates in the direction of thearrow, Fig. 4, the free end of the bell crank lever 35 will be forcedoutward and the pawl 37 will be forced downward, the teeth 38 ridingover the faces of the ratchet teeth 37. As soon as the portion of thecam having the greatestdiameter has passed the roller on the extremityof the bell crank lever, the spring 36 will cause the free end of thebell crank lever to shift quickly inward and the short end of the bellcrank lever will be raised, thus lifting upon the pawl 37. The pawl 37will engage the teeth of the ratchet wheel 39 and will give a certainrotation to the shaft 28 which in turn will be transmitted to the screwshafts 25 and 26. The cam will be so set that this feeding movement willoccur at the instant that the cranks 19 have reached an intermediateposition and the tool carriers 16 and 17 have reached the end of theirtravel in one direction.

lWhile we have illustrated a mechanism for securing a feed of thecutters which we believe to be entirely e`ective, we do not wish to belimited to this specific means as f `ried by said carriers will beoppositely set ving providedwitha pair of tool holders,

the tools carried' by said holders being set oppositely to each other.It will be understood, howeverthatthere ymay be one tool holder mountedupon the carrier 17 for infstance and another tool holder mountedupon`the carrier 16,1'and that the tools carto each other or eachycarrier may carry a pair ofcutting tools oppositely set to each other.We do not wish to be limited to this, nor dowe wish to be limited to thespecific -manner of mounting a tool upon the carrier, ybut we havefoundthat a very effective and rigid mounting is secured by providingl atool holder inthe form of a block designated 40 and illustrated in Fig.6. This block is rectangular in form and is provided upon one face withthe outwardly projecting vInar- *the tool holder. this screw, the tool46 may be forced downginal flanges 41, the space between such flangesbeing just wide enough to engage on each edge of the corresponding toolcarrier 18. It will be seen that this block 40 fits against one side ofthe tool carrier with its flanges 41 extending over the edges of thetool carrier. The tool holder may be shifted along the carrier toany'desired positionand clamped in position by/means of a bolt 42passing through the tool carrier be'- tween the bars thereof andextending into the middle of the block. v This bolt 42 is provided witha relatively large and preferably square washer 43 which engages thevside of the tool carrier. f

' The face of the block 40 is formed with a vertically extending/toolchannel 44, preferably rectangular in form, and a mating channel isformed in the face of a plate 45 whichis bolted to th'eface of the block40. The tool 46 may be of any suitable character but is shown asformed'aty its lower extremity with a cutting edgeV 47 particularlyadapted for planing across the face of a wood block. The tool is setwithin the tool channel 44 and is held therein by screws which passthrough the face plate 45 and clamp the tool in place. The tool may bevertically adjusted by means of a screw 49 which extends through abridge 48 or bowed member which arches over the upper end of By turningdown upon ward as the face of the butchers block is cut away. kIt willbeobvious that the carrier bars 18 may have any suitable form in crosssection and that the contacting face of each b1ock`4Q will be made tofit the peculiar formed with whereas-if the faces of the bars'areround,`

,semi-circular recesses.

form of the bars 18. If these bars' are -diamond shaped, the face of theblock will be diamond -shaped recesses,

the face of the bloclrwwillbe formed with spect is entirely within thepurview of our invention. a I. i j f The operation of ouvrpinventionwill be plainly evident from what has gone before. The frame bars 2 and3 yare yclamped in any suitable manner upon the block to ybe out.

Variation in this ren Screws or bolts may be passed through the i framebars and into said block, said screws holding the cutting mechanismrigidly in placeupo-n the face of the block. The travelers 4 and 4a areinitially of course yat one end of the frame formed bythe bars 2 and 3,and whenfpower is applied to the-shaft .6, the shaft will be rotated andthe cut-ters will be reciprocated. Between each reciprocation of thecutters the travelers will vbe moved forward one step so that when thetravelersl have journeyed from one end of the frame to the opposite endthereof, the face ofthe block` will be entirely cutaway. This cuttingawayy of the block by means of cutters which are` supported in arigidframe will resurface the block and give it a perfectly level andtruesurface at right angles to the side,v of the butchers block.v It will beobvis l ousthat a device of this kind will resurface l a block, ktrue itand square it in much less time than it can possiblybe done kby hand andmuch more accurately. The invention is simple, may be modifiedr to suitany de# sired form of block, is easily applied and is entirely positivein its action.

While'we have designed our machine particularly for facing butchersblocks, it will be understood that it might be used for ref surfacing orrefacing any form of block to 'which it is'adapted. a i

What we claim is:

" 1. 'A block surfacing machine including spaced bars engaging on eachside of a block `and constituting a frame, oppositely Vdisposedtravelers mounted on said'bars for longitudinal movement andfslidingther'ealong, areciprocating tool carrier shiftable throughsaidtravelers, a tool holder mount- ,f ed on said carrier for longitudinaladjust ment` therealong and adapted-to support a depending tool, meansfor reciprocating said carrier, and means for automatically feedend tothe other. l

2. A block surfacing machine including spaced side bars and transverseend bars, ,said bars constituting the` frame and kbeing `1'2o` ing saidtravelersalong the frame from one engageable with the sides of a block,a pair of travelers, one mounted upon each of the side bars andshiftable' therealong, connecting members extending between thetravelers, a tool carrier extending between'r the travelers andreciprocatingly mounted therein, a tool holder adjustably mounted uponsaid carrier for longitudinal adjustment along the carrier, a crankshaft upon one of the travelers, means for driving said shaft, aconnecting rod extending between the crank shaft and said carrier, saidconnecting rod and carrier being relatively adjustable.

3. A block surfacing machine including a supporting frame adapted toengage a block, oppositely disposed, longitudinally movable travelersmounted upon said supporting frame and connected to each other, areciprocating tool carrier mounted in said travelers, a crank shaftmounted upon one of the travelers and having a crank at one end thereof,a connecting rod extending between said crank and the carrier, agearwheel mounted on the crank shaft, a driving shaft carrying a pinionwith which the gear Wheel engages, said pinion rotating with the shaftbut being longitudinally movable with the traveler, screw feed shaftswith which the travelers engage, and means actuated by the driving shaftfor rotating said screw shafts to cause the travelers to move along theframe from one end to the other.

4. A block surfacing machine including a supporting frame adapted toengage the sides of a block and including spaced side bars, oppositelydisposed travelers longitudinally shiftable on the side bars andconnected to each other, a transversely extending tool carrying barlongitudinally shiftable through said travelers, a drive shaft on theframe, mechanism on one traveler driven from said drive shaft andreciprocating the traveler, a pinion on the drive shaft, a gear wheelsupported on the frame and driven from the pinion, a shaft on which thegear wheel is mounted, a cam also mounted on the shaft, a transverseshaft geared to said screw feed shafts, and means operated by the camfor giving an intermittent rotation to said transverse shaft.

5. A block surfacing machine including a supporting frame havingoppositely spaced side bars adapted to engage the sides of a block to besurfaced, oppositely disposed travelers slidably mounted upon said sidebars and connected to each other, means for feeding said travelerslongitudinally along the side bars, a transversely extending toolcarrier reciprocatably mounted in said travelers and comprising a pairof spaced bars connected at their ends, means mounted on the frame forreciprocating said carrier, and a tool holder adjustably mounted on thecarrier and comprising a member having sliding engagement with thecarrier, means for clamping a tool upon said member, and means forholding the member in any desired adjusted position along the length ofthe tool carrier. v

6. A block surfacing machine including a supporting frame having spacedside bars, oppositely disposed travelers mounted upon said frame, eachof said travelers having cppositely disposed antifriction Wheelsengaging said side bars, means connecting the travelers, feeding meansengaging the travelers and feeding them simultaneously from one end ofthe frame to the other, a transverselyreciprocatable tool carrierslidably mounted at its ends in said travelers, means carried on theframe for reciprocating said carrier, and tool holders mounted upon saidcarrier and tools depending from the tool holder, said tools facingtoward each other.

7. A block surfacing machine including a supporting frame, a travelermounted thereon, a reciprocating tool carrier mounted in the travelerand comprising spaced parallel bars, a crank shaft carried by thetraveler, a connecting rod upon the crank shaft, a member carried on theend of the connecting rod and engaging the carrier within the slotthereof and adjustable along said slot, a tool holder engaging the slotof the carrier and longitudinally adjustable thereon, and a planing toolmounted in said holder.

In testimony whereof we afliX our signatures in presence of witnesses.

GEoReE nosnvo. [1.. s j EDWARD M. BEVARD. {as} JOHN Hannie. taaiWitnesses:

C. A. GUERNSEY, CHARLES L. GUERNSEY, CHARLES L. BEVARD.

Copies of this patent may b'e obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. G.

